I can tell you that i dont like her because i feel like she is trying to convince us she is this super jpop idol and she isnt. She is not popular in japan and nobody knows her name. I think that to be a REAL artist you should have something to say, something to show to your audicence, and i feel she is just playing to be a jpop idol.To me she is an Otaku with luck.But to be an idol I think she is missing that "something"...i dont how to explain it.

And you are right, she is very cute and sweet but that's not enough to be an idol.